Method resolveDependencies

lib/ContextModuleFactory.js:318–528

* Resolves dependencies. * @param {InputFileSystem} fs file system * @param {ContextModuleOptions} options options * @param {ResolveDependenciesCallback} callback callback function * @returns {void}

(fs, options, callback)

	 * @returns {void}
	 */
	resolveDependencies(fs, options, callback) {
		const cmf = this;
		const {
			resource,
			resourceQuery,
			resourceFragment,
			recursive,
			regExp,
			include,
			exclude,
			referencedExports,
			category,
			typePrefix,
			attributes
		} = options;
		if (!regExp || !resource) return callback(null, []);

		/**
		 * Adds directory checked.
		 * @param {string} ctx context
		 * @param {string} directory directory
		 * @param {Set<string>} visited visited
		 * @param {ResolveDependenciesCallback} callback callback
		 */
		const addDirectoryChecked = (ctx, directory, visited, callback) => {
			/** @type {NonNullable<InputFileSystem["realpath"]>} */
			(fs.realpath)(directory, (err, _realPath) => {
				if (err) return callback(err);
				const realPath = /** @type {string} */ (_realPath);
				if (visited.has(realPath)) return callback(null, []);
				/** @type {Set<string> | undefined} */
				let recursionStack;
				addDirectory(
					ctx,
					directory,
					(_, dir, callback) => {
						if (recursionStack === undefined) {
							recursionStack = new Set(visited);
							recursionStack.add(realPath);
						}
						addDirectoryChecked(ctx, dir, recursionStack, callback);
					},
					callback
				);
			});
		};

		/**
		 * Adds the provided ctx to the context module factory.
		 * @param {string} ctx context
		 * @param {string} directory directory
		 * @param {(context: string, subResource: string, callback: () => void) => void} addSubDirectory addSubDirectoryFn
		 * @param {ResolveDependenciesCallback} callback callback
		 * @returns {void}
		 */
		const addDirectory = (ctx, directory, addSubDirectory, callback) => {
			fs.readdir(directory, (err, files) => {
				if (err) return callback(err);